Atomic Mass Calculator


Atomic Mass can be explained as the overall mass of electrons, neutrons and protons within an atom when the atom is at rest. We can calculate atomic mass by summing number of protons and neutrons in an atom.

You will be able to find the atomic mass by using this below formula:

Atomic Mass Formula


Use our below online atomic mass calculator to calculator to find atomic mass. Enter the number of protons and number of neutrons in the given input fields and click calculate to find the answer.


Number of Protons:
Number of Neutrons:
Atomic Mass:






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